Amp firewall pass through
 

Having a hard time finding a spot to run the Power cable for amp through the firewall. I have a 2000 Blazer LS 4x4. Can anyone point me in the right direction?

I had to run a couple of power cables in mine, and I ended up going through the floor and along the frame to the front. There just isn't a lot of room on the firewall.

I used some of to make the holes water tight.

Depending on the gauge of wire you're trying to run, you can squeeze up to about a 4 gauge through the antenna grommet on the passenger side after you open the hole up a little. Just don't forget to seal it up with a little silicone afterwards, they're prone to leaking with just the antenna wire in it...

For my 0 gauge, I ended up running along the passenger side frame rail and came up through the floor under the rear seat via a drilled hole and a grommet I popped in place.


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Ended up adding another fuse junction where it terminated under the back seat, which has worked out great because I've been able step it down to 4 gauge with some of the various amps I've had in the truck.

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I took my power off the starter terminal, went through a waterproof fuse holder, and immediately went inside the frame rail to the rear - coming up through a grommet into the old Onstar module compartment where I mounted my amp. This was on a 2001 LT four door.